-er -ey a-a a-b a-c aaa aab aac aae aak aar aay ab- aba abb abc abe abk abr aby ac- aca acb acc ace ack acr acy aea aeb aec aee aek aer aey aka akb akc ake akk akr ar- ara arb arc are ark arr ary ay- aya ayc aye ayk ayr baa bab bac bae bak bar bay bba bbb bbc bbe bbk bbr bby bca bcb bcc bce bck bcr bcy be- bea beb bec bee bek ber bey bka bkb bkc bke bkk bkr bra brb bre brk brr bry by- bya byc bye byk byr c-- caa cab cac cae cak car cay cba cbb cbc cbe cbk cbr cby cca ccb ccc cce cck ccr ce- cea ceb cec cee cek cer cey cka ckb ckc cky cra crb crc cre crk crr cry cya cyb cyc cye cyk cyr eaa eab eac eae eak ear eba ebb ebc ebe ebk ebr eby ec- eca ecb ecc ece eck ecr eea eeb eec eee eek eer eey eka ekb ekc eke ekr eky era erb erc ere erk err ery eya eyc eye eyr ka- kaa kab kac kae kak kar kay kba kbb kbc kbe kbk kbr kca kcb kcc kce kck kcr ke- kea keb kec kee kek ker key kkb kkc kke kkk kkr kky kra krc krk krr kry kya kyc kye kyr ra- raa rab rac rae rak rar ray rba rbb rbc rbe rbk rbr rca rcb rcc rce rcr re- rea reb rec ree rek rer rey rkb rkc rke rkk rky rra rrb rrc rrk rrr ry- rya ryc rye ryk ryr ryy yaa yab yac yae yak yar yay ybc ybe ybr yby yca ycc yce ycy yea yeb yec yee yek yer yey yka ykk yra yrc yre yyb yyc yye yyy

a-ak a-be a-ya aaaa aaab aaac aaae aaar aaba aabb aabc aaby aaca aacb aacc aace aack aacr aacy aaea aaec aaka aake aara aarc aare abaa abab abac abae abak abar abay abb- abba abbb abbe abbr abby abca abcb abcc abcr abec abee aber abey abra abrc abry abyc abye abyy acaa acab acac acae acar acba acca accc acce accy ace- acea acec acek acer acey acke acr- acra acrc acre acrr acry aeac aeby aecb aeer aeka aer- aera aerc aery akaa akae akar akay akca akee aker akey akka akr- akra akre akyr arab arac arae arak arar aray arba arbe arby arc- arca arce area arec aree arek arey arka arke arky arr- arra arrc arre arrk arrr arry ary- arya arye aryk ayar ayay ayca ayce ayer ayra ayre ayrk ayry ayya baaa baak baar baba babb babe babr baby bac- baca bacc bace back baek baer bak- baka bake bakr bar- bara barb barc bare bark barr bary baya baye bbay bbbb bbeb bbrc bcaa bcar bcbc bcca bccc bcec bcer bcra beak bear beay beba bebb bebe beby beca beck beeb beek beer beey beka beke bera berc bere berk berr bery beya beye beyk bkcy bkry brab brac brae brak bray brca brcb brce brea breb brec bree brek brer brey brka brkb brrr bry- brya brye bryk byar byce byck byer byke byre byrk caaa caab caac caba cabe caby cac- caca cacc cace cack cacr caec caer caka cake caky cara carb carc care cark carr cary caye cayr cbac cbar cbbc cbca cbcc cbce cbcr cbea cbec cbee cber cbka cbkr cbre cbry ccaa ccab ccac ccar ccba ccbc ccca cccb cccc ccee ccra ccrc ccre ceac cear ceba cec- ceca cece ceeb ceec ceke cer- cera cerc cere cery ckac ckbc ckbe ckck ckcy cker ckey ckrc ckry crab crac crar cray crbc crca crcc crce crcr cre- crea creb crec cree crkc cry- crya cryb cya- cyaa cyar cyba cybb cybc cyc- cyca cycb cycc cyke cyra cyre cyrk cyy- cyyc eaba eaca eacc eaec eara earb eare eary ebac ebay ebba ebbc ebbr ebby ebcc eber ebya ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce ecka ecky ecra ecrc ecrr eeby eeca eeea eeee eeka eeke eera eerc eery eka- ekab ekeb ekek eker ekka eray erba erbb erbe erca ercc erce ereb erec erer erke erra errc erre erya eryc erye eyak eyck eyeb eyec eyer eyey eyke eyra eyre eyry eyyr kaaa kaab kaak kaar kaay kaba kabb kabc kabe kabr kaby kacb kacc kace kacy kaer kaka kakc kake kakk kara karb kare kark karr kary kaya kaye kbaa kbab kbac kbae kbak kbar kbay kbba kbbb kbbc kbbe kbbk kbbr kbca kbcb kbce kbck kbcr kbcy kbeb kbec kbee kbek kber kbey kbkb kbkk kbkr kbky kbra kbrb kbrc kbre kbrk kbry kbya kbyb kbyr kcaa kcab kcac kcar kcba kcbc kcbk kcbr kcca kccb kccc kcck kccr kccy kcea kceb kcec kcee kcey kckc kckk kckr kcky kcrc kcrr kcry kcya kcye kcyk kcyy kea- keak kear keay keba kebb kebc kebe kebr keca keck kecr keek keer keka kekb kekc keke ker- kera kerb kerc kere kerk kerr keya keyb keye keyy kkaa kkac kkar kkay kkba kkbb kkbe kkbr kkcb kkck kkcr kkcy kkea kkkk kkrb kkrc kkre kkrk kkrr kkya kkyc kkyy krab krac krae krak krar kray krba krbb krbe krbk krbr krca krcb krcc krce krea kreb krec kree krek krka krkc krke krkk krkr krky krrb krrc krre krrk krrr krry krye kryk kryy kyaa kyak kyar kyay kyba kybb kybc kybe kybr kyby kyca kycc kyck kycr kyee kyka kykc kyke kykk kykr kyky kyra kyrc kyre kyrk kyya kyyk kyyy raab raak raba rabb rabe rabk raby rac- raca racc race rack racy raec raer raka rake rakk rara rarb rare rark rary raya raye rayk rayr rbbb rbbr rcac rcbc rccb rccc rcyc rea- reac reae reak rear reay reba rebb rebe rebk reca recc rece reck recr recy reeb reek reka reke reky rera rere rery reya reye